C& D Initial Assessment - Understanding the Muscular System

Which of the following is a type of muscle found in the human body?

• Cardiac muscle

• Skeletal muscle

• Smooth muscle

• All of the above

What is the primary function of skeletal muscles?

• Pumping blood

• Facilitating movement

• Digesting food

• Producing hormones

Which process describes the shortening of a muscle during contraction?

• Isometric contraction

• Eccentric contraction

• Concentric contraction

• Static contraction

What role do antagonistic muscles play in the body?

• They work together to produce the same movement

• They oppose the action of the primary muscle

• They stabilise joints

• They produce hormones

Which of the following is an effect of regular exercise on muscles?

• Muscle atrophy

• Decreased muscle strength

• Increased muscle mass

• Reduced muscle endurance

Which is not a main muscle property:

• Elasticity

• Extensibility

• Contractibility

• Flexibility

Which nutrient is most important for muscle growth and repair?

• Carbohydrates

• Fats

• Proteins

• Vitamins

What is isometric muscle contraction?

• When the muscle shortens

• When the muscle stays the same length

• When the muscle lengthens

• When you need special equipment to manipulate the muscle

Which muscle type is involuntary and found in the walls of internal organs?

• Skeletal muscle

• Cardiac muscle

• Smooth muscle

• Striated muscle

What is the primary energy source for muscle contraction during high-intensity exercise?

• Fatty acids

• Glucose

• Amino acids

• Vitamins